Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Nawa Technologies

Pascal Boulanger

Olivier Sublemontier

Mathieu Pinault

Emeline Charon

Martine Mayne

Thomas Goislard De Monsabert

Olivier Gobert

Cécile Reynaud

Alexandre Brouzes

A method for preparing carbon nanotubes, nanofibres or nanofilaments by decomposition of at least one carbon precursor in the presence of a catalyst, in which method continuously:&#x2014;a first gas stream comprising a precursor of a catalyst is brought into contact with a porous substrate ();&#x2014;a second gas stream comprising at least one carbon precursor is brought into contact with said porous substrate ();&#x2014;said porous substrate () is heated to a temperature leading to the deposition of catalyst particles and to the catalytic growth of carbon nanotubes.

Method for producing carbon nanotubes attached to a substrate

A method for preparing a cable formed of carbon nanotubes, comprising decomposing at least one carbon precursor compound and at least one precursor compound of a catalyst on a porous substrate (), in which method continuously: &#x2014;a first gas stream comprising a precursor of a catalyst is brought into contact with a porous substrate (); &#x2014;a second gas stream comprising at least one carbon precursor is brought into contact with said porous substrate (); &#x2014;said porous substrate () is heated to a temperature leading to the deposition of catalyst particles and the catalytic growth of a carbon nanotube bundle, and preferably between 500&#xb0; C. and 1000&#xb0; C.

Method for producing cables made of aligned carbon nanotubes

A method for preventing, reducing and/or eliminating the fouling of a composite material is provided, the composite material comprising (1) a plurality of conductive or semiconductive nanotubes, which are aligned parallel to one another, and (2) a matrix arranged between the conductive or semiconductive nanotubes, the composite material in the form of an isoporous membrane with nanopores which correspond to the pores of the conductive or semiconductive nanotubes and optionally to the pores of the matrix arranged between the conductive or semiconductive nanotubes, the method comprising applying an electric field to the composite material, wherein the fouling is prevented, reduced and/or eliminated at the surface, at and in the pores of the composite material.

Method for preventing, reducing and/or eliminating the fouling of a composite material

A device for cutting a structure including nanotubes, including: a mechanism to polarize linearly laser pulses emitted in a direction of the structure, wherein a duration of the laser pulses is roughly between 1 femtosecond and 300 femtoseconds; and a mechanism to focus the linearly polarized laser pulses on the structure.

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Eguilles, France

Pascal Boulanger